Referring to the ArrayBoundedQueue implementation in Chapter 4. What is the order of growth execution time of the dequeue operation when using the LinkedQueue class (or in general any linked-list based queue), assuming a queue size of N.
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- The regular queue is a FIFO structure, meaning that you can only enqueue at the rear and dequeue at the front. Suppose that the dequeue operation can also be performed at the rear (so you can remove and return the last element on the queue), which of the following describes the correct and efficient way of using a linked list to implement this queue? OUsing a singly linked list with a reference to the head only, the dequeue method traverses it, stops at the last node and removes it. O Using a singly linked list with a reference to the head only, the dequeue method traverses it, stops at the second to last node and removes the last node. O Using a singly linked list with references that point to the first and the last nodes respectively, the dequeue method removes the last node via the corresponding reference. OUsing a doubly linked list with references that point to the first and the last nodes respectively, the dequeue method can remove the last node via the corresponding reference. O…True or False? Using an unsorted array to implement a priority queue would allow an O(1) enqueue operation. True FalsQUESTION 9 An array of size MAX_SIZE is used to implement a queue. head, tail, and size are tracked. Suppose front is 0 and rear is MAX_SIZE -1. How many elements are present in the queue? O a. 0 O b. MAX_SIZE-1 OC MAX SIZE O d.1
- Implement a double-ended queue. It is a variation where enqueues and dequeues are allowed on both ends. Implement the following double-ended queue operations using circular array representation with variables for the front and rear indices: a. new b. clear c. enqueueFront d. enqueueRear e. dequeueFront f. dequeueRear g. isEmpty h. isFull i. peekIn a circular array-based implementation of a queue, what is the performance of the dequeue operation? O(n²) O(log n) O(1) 0 0(n)The bounded-buffer solution in the below code uses a last-in-first-out strategy (LIFO).Change the code to implement a FIFO (First-in-First-out) strategy. You may use the (in,out) pointer method(using semaphores to test if the queue is full or empty shouldalleviate the problem of only using up N-1 locations) or implement a FIFO queue. Usethe correct counting semaphore implementation. C code below ******************************************************************************************************************************* #include <stdio.h>#include <stdlib.h>#include <pthread.h>#include <semaphore.h>#define SIZE 5#define NUMB_THREADS 6#define PRODUCER_LOOPS 2typedef int buffer_t;buffer_t buffer[SIZE];int buffer_index;pthread_mutex_t buffer_mutex;/* initially buffer will be empty. full_semwill be initialized to buffer SIZE, which meansSIZE number of producer threads can write to it.And empty_sem will be initialized to 0, so noconsumer can read from buffer until a…
- In Java and C++ create a Generic ArrayList where all elements in the ArrayList must be of the same type. In every node of the linked list the size of the array it contains must be at least double the size of the previous node’s array. Between O(1) time and O(n) time. add(int index, E e) clear() contains(E e) ensureCapacity(int minCapacity) isEmpty() get(int index) remove(int index) size()Assume that you have an emply circular queue Q (array-based implementation) wilth size 4 rear initially equals 0 front initially equals 0 The following operations have been performed Qenqueue(a") ==> Q.enqueue("b"), => Q.enqueue("c"); > Qenqueue(d") Q dequeue): Q dequeue(): > Q.enqueue('d"). ==> Q dequeue(); ==> Q dequeu Qenqueterc ==> Q dequeue() ==> Qenqueue("a"), ==> Qenqueue('b") = what is the value of the front index and rear index? Select one Oa Front =3 and rear= 0 Front=3 and rear= 3 C None CO Front =1 and rear = 0Queues and stacks can be implemented by using linked list structure. To implement "pop" and "push" methods of stack, ... and .. methods of linked list can be used, respectively. To implement "enqueue" and "dequeue" methods of queue, .. and. methods of linked list can be used, respectively. Fill in the blank with correct answers. O pop_front - push_back - pop_back - push_back O pop_back - push_front - pop_front - push_front pop_back - push_back - pop_front - push_back O push_back - pop_back - push_back - pop_front
- Java help, can you please explain this I'm a beginner and I'm lost:( Implement a nested class DoubleNode for building doubly-linked lists, where each node containsa reference to the item preceding it and the item following it in the list (null if there is no suchitem). Then implement methods for the following tasks:• Print the contents of the list• Insert at the beginning• Insert at the end• Remove from the beginning• Remove from the end• Insert before a give node (Insert before the first occurrence of the node, if thenode exists; else insert at the end)• Insert after a given node (Insert after the first occurrence of the node, if the nodeexists; else insert at the end)• Remove a given node (Remove the first occurrence of the node, remove nothing ifnode not found)• Move to front (move the first occurrence of the node to the front)• Move to end (moved and first occurrence of the node to the end)Write a tester program and test your implementation. You must test each of these cases…an application has a huge number of find the maximum operations, but a relatively small number of insert and remove the maximum operations. Which priority- queue implementation do you think would be most effective: heap, unordered array, or ordered array? Explain your Answer.Using Java Design and implement a RandomQueue. This is an implementation of the Queue interface in which the remove() operation removes an element that is chosen uniformly at random among all the elements currently in the queue. (Think of a RandomQueue as a bag in which we can add elements or reach in and blindly remove some random element.) The add(x) and remove() operations in a RandomQueue should run in constant time per operation.